is a large sturdy, full-sized, three button trackball, which is 100%
Microsoft mouse compatible and very popular. The low profile case
acts as a natural hand rest. The central green coloured key (situated
at the back of the yellow ball) is a "drag lock" feature
- simply press the drag button and the button stays 'locked' until
you press a second time. Supplied with PS2 connector or USB connector.
For PC only.
three colour coded switch jacks allows easy switch operation of the
left (blue) button, right (red) button and drag-lock (green) button
. We can supply blue, red and green switches.
device allows mouse-click access to all simple switch software.